mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 23:04:33 +00:00
a935064fae
Compiler: Rename "object safe" to "dyn compatible" Completed T-lang FCP: https://github.com/rust-lang/lang-team/issues/286#issuecomment-2338905118. Tracking issue: https://github.com/rust-lang/rust/issues/130852 Excludes `compiler/rustc_codegen_cranelift` (to be filed separately). Includes Stable MIR. Regarding https://github.com/rust-lang/rust/labels/relnotes, I guess I will manually open a https://github.com/rust-lang/rust/labels/relnotes-tracking-issue since this change affects everything (compiler, library, tools, docs, books, everyday language). r? ghost
30 lines
1.3 KiB
Plaintext
30 lines
1.3 KiB
Plaintext
error[E0038]: the trait `issue_3907::Foo` cannot be made into an object
|
|
--> $DIR/issue-3907-2.rs:11:12
|
|
|
|
|
LL | fn bar(_x: Foo) {}
|
|
| ^^^ `issue_3907::Foo` cannot be made into an object
|
|
|
|
|
note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
|
|
--> $DIR/auxiliary/issue-3907.rs:2:8
|
|
|
|
|
LL | fn bar();
|
|
| ^^^ the trait cannot be made into an object because associated function `bar` has no `self` parameter
|
|
|
|
error[E0277]: the size for values of type `(dyn issue_3907::Foo + 'static)` cannot be known at compilation time
|
|
--> $DIR/issue-3907-2.rs:11:12
|
|
|
|
|
LL | fn bar(_x: Foo) {}
|
|
| ^^^ doesn't have a size known at compile-time
|
|
|
|
|
= help: the trait `Sized` is not implemented for `(dyn issue_3907::Foo + 'static)`
|
|
= help: unsized fn params are gated as an unstable feature
|
|
help: function arguments must have a statically known size, borrowed types always have a known size
|
|
|
|
|
LL | fn bar(_x: &Foo) {}
|
|
| +
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
Some errors have detailed explanations: E0038, E0277.
|
|
For more information about an error, try `rustc --explain E0038`.
|